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libopencore-amr: Check the return value of amr_decode_fix_avctx

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This allows getting rid of redundant checks later in the codec
specific init functions.

Move the check to before actually initializing the decoder lib,
to simplify error handling.

This fixes a case of returning a value from a void function, present since
d40dab907.

Signed-off-by: Martin Storsjö <martin@martin.st>
This commit is contained in:
Martin Storsjö
2012-11-06 12:18:57 +02:00
parent e6c4c0f7cf
commit ad961726dc
1 changed files with 10 additions and 15 deletions
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25
libavcodec/libopencore-amr.c
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@@ -27,7 +27,7 @@
#include "audio_frame_queue.h"
#include "internal.h"
static void amr_decode_fix_avctx(AVCodecContext *avctx)
static int amr_decode_fix_avctx(AVCodecContext *avctx)
{
const int is_amr_wb = 1 + (avctx->codec_id == AV_CODEC_ID_AMR_WB);
@@ -41,6 +41,7 @@ static void amr_decode_fix_avctx(AVCodecContext *avctx)
avctx->channels = 1;
avctx->channel_layout = AV_CH_LAYOUT_MONO;
avctx->sample_fmt = AV_SAMPLE_FMT_S16;
return 0;
}
#if CONFIG_LIBOPENCORE_AMRNB
@@ -107,6 +108,10 @@ static const AVClass class = {
static av_cold int amr_nb_decode_init(AVCodecContext *avctx)
{
AMRContext *s = avctx->priv_data;
int ret;
if ((ret = amr_decode_fix_avctx(avctx)) < 0)
return ret;
s->dec_state = Decoder_Interface_init();
if (!s->dec_state) {
@@ -114,13 +119,6 @@ static av_cold int amr_nb_decode_init(AVCodecContext *avctx)
return -1;
}
amr_decode_fix_avctx(avctx);
if (avctx->channels > 1) {
av_log(avctx, AV_LOG_ERROR, "amr_nb: multichannel decoding not supported\n");
return AVERROR(ENOSYS);
}
avcodec_get_frame_defaults(&s->frame);
avctx->coded_frame = &s->frame;
@@ -324,16 +322,13 @@ typedef struct AMRWBContext {
static av_cold int amr_wb_decode_init(AVCodecContext *avctx)
{
AMRWBContext *s = avctx->priv_data;
int ret;
if ((ret = amr_decode_fix_avctx(avctx)) < 0)
return ret;
s->state = D_IF_init();
amr_decode_fix_avctx(avctx);
if (avctx->channels > 1) {
av_log(avctx, AV_LOG_ERROR, "amr_wb: multichannel decoding not supported\n");
return AVERROR(ENOSYS);
}
avcodec_get_frame_defaults(&s->frame);
avctx->coded_frame = &s->frame;